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Finding the Fourth Proportional to 6,672.82, 9,208.08 and 3,688.60

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Solution

The fourth proportional to 6,672.82, 9,208.08 and 3,688.60 is: 5,090.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,672.82 : 9,208.08 = 3,688.60 : x
  2. Step 2: Convert to fraction form
    6,672.82/9,208.08 = 3,688.60/x
  3. Step 3: Cross multiply
    6,672.82x = 9,208.08 × 3,688.60
  4. Step 4: Simplify right side
    6,672.82x = 33,964,923.89
  5. Step 5: Solve for x
    x = 33,964,923.89/6,672.82
  6. Step 6: Final answer
    x = 5,090.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.